Update setuptools to v69

[Avasam]

This is an attempt at closing #11049 without needing any stubtest update.

The main point is about removing pkg_resources._vendor and adding packaging to the requirements

Edit: Looks like either stubtest or stub_uploader is gonna need an update to keep the packaging subclassing.

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Separatly, I'm not sure how to best handle newer_pairwise_group. typing it as a def stubtest says error: setuptools.modified.newer_pairwise_group is not a function. typing is as partial[Incomplete] looses parameters signature (ref #8703). And pyright seems to have some special handling of functools.partial seeing the following (which also validate correct parameter names and types in the cli):

I feel like I should go with an allowlist entry for mypy users.

[Avasam]

This entire module (stubs/setuptools/setuptools/dep_util.pyi) is deprecated in favor of setuptools.modified
I could keep the defs instead of importing from _distutils so I can mark with @deprecated

[Avasam]

I could define the methods here instead of in setuptools/_distutils/_modified to avoid a adding a private module

[AlexWaygood]

Better to define them where they're defined at runtime imo, as you currently have it

[JelleZijlstra]

I gather newer_pairwise_group is a functools.partial at runtime? I would agree with stubbing it as an equivalent def function, and allowlisting stubtest if it complains.

[Avasam]

I gather newer_pairwise_group is a functools.partial at runtime? I would agree with stubbing it as an equivalent def function, and allowlisting stubtest if it complains.

Yep, if it makes it clearer, this is what it'd look like using functool.partial assignement in stub for pyright (not mypy) to understand: 5946e13#diff-c7f29e111ff63f317e294acc4ea34b5ee0181dfe30dfcbb54cb3fe0c7df53803R9

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

pwndbg (https://github.com/pwndbg/pwndbg)
+ pwndbg/exception.py:8: note: In module imported here:

bandersnatch (https://github.com/pypa/bandersnatch)
+ src/bandersnatch/filter.py:8: note: In module imported here:

[Avasam]

Superseeded by #11069